requestlist size doesn't stop growing since 1.8.0 upgrade

Wouter Wijngaards wouter at nlnetlabs.nl
Mon Sep 24 07:11:31 UTC 2018


Hi Nusenu,

On 9/23/18 12:25 PM, nusenu via Unbound-users wrote:
> Hi,
> 
> I upgraded recently from 1.7.3 to 1.8.0, since then I'm observing a constant
> and steady growth of the requestlist queue. Currently it is about x8
> what it usually used to be and it still keeps growing.

This is a previous bugreport and there are already fixes in the code
repository for it.  It shouldn't actually change the responses to normal
queries, but these entries are using up some time and space on the
server for a while.  The fix should remove them.

Best regards, Wouter

> 
> Is that expected with some of the new default?
> I specifically disabled so-reuseport (see other thread).
> 
> The number of qps remained unchanged.
> 
> I assume that a growing queue size is bad for service quality 
> if the number of qps is unchanged.
> 
> Since I'm currently not observing any negative impact on reply time
> I'm also not ruling out that this might be a monitoring issue (using unbound's
> munin plugin). Have there been any changes that would affect the requestlist graph?
> 
> 
> 

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